People, Periodic Laws, Trends
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Lavosier | - Developed first 33 Elements
- Distinguished Metals and Non-Metals
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| Moseley | - Reordered periodic table by atomic #'s
- Modified Periodic Law
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| Meyer | - Periodic Table of 56 elements
- Molar Volume
- Atomic Weight
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| Cannizaro | - Determined atomic weights for elements
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| Doberiner | Similar elements had relative atomic mass
- "Triads"
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| Dechancourtois | - Periodic table in a cylinder
- Unbroken order of increasing weight of an atom
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| Mendeleyev | Sole Originator of Periodic table
- Forecasted properties of unknown elements
- Organized based on chemical properties
- Periodic Law
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| John Dalton | -Mass of an atom was the most important property
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| Seaborg | Removed heaviest elements in periodic table and put them below
- "actinade - lanthinide series
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| Greek Thinkers | Created words "Element" and "Atom"
- Described the differences of smallest parts of matter
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| Newlands | Arranged elements based on Atomic weights
- Octaves
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| Ionization Energy | how easy it is for an atom to receive an electron
- Increases ------>
- Decreases down
- Has so many shells, it forgets some are there for FRancium
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| Electronegativity | how strongly the nucleus pulls on electrons
- Increases ------>
- Decreases down
- Fluorine has 7 valence electrons and not a ton of shells yet
"Pauling"
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| Atomic Radius | size of an atom; 1/2 distance between 2 nuclei of the same element
- Decreases ------->
- Increases down
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Created by:
adobill
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